V1.0.0 rc.2 #7
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V1.0.0 rc.2 #7
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This is a requirement for compose: Let's assume we're only consuming a cold flow in a single @composable function ```kotlin @composable fun MyWidget() { Text(MyState.composeValue()) } ``` Then this 'composeValue' function will internally get the 'StateFlow' and use the 'collectAsState' compose function to react to the state: ```kotlin /* Copied form compose */ @composable fun <T> produceState( initialValue: T, key1: Any?, // < this key will be the StateFlow which shall be collected key2: Any?, // <- this key will be the current coroutine context producer: suspend ProduceStateScope<T>.() -> Unit ): State<T> { val result = remember { mutableStateOf(initialValue) } LaunchedEffect(key1, key2) { ProduceStateScopeImpl(result, coroutineContext).producer() } return result } ``` As you can see: It is important to return the same (or equal) instance of this 'to be collected' flow as otherwise the LaunchedEffect will be re-triggered and "subscribe", "unsubscribe" loop will happen.
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